CN103802248A

CN103802248A - Four-sided core pulling structure for die

Info

Publication number: CN103802248A
Application number: CN201210457539.0A
Authority: CN
Inventors: 李兴发
Original assignee: Mitac Precision Technology Kunshan Ltd
Current assignee: Mitac Precision Technology Kunshan Ltd
Priority date: 2012-11-14
Filing date: 2012-11-14
Publication date: 2014-05-21
Anticipated expiration: 2032-11-14
Also published as: CN103802248B

Abstract

The invention discloses a four-sided core pulling structure for a die, which is used for forming a product with buckles at four sides. The structure comprises a male die core, two slider seats and four slider inserts, wherein the core is provided with four insert slots which are on one straight line in pairs, the two straight lines are intersected, male die inserts are arranged at positions where the insert slots are intersected; the two slider seats are respectively arranged on the two opposite sides of the male die core, and first guide chutes are arranged on one sides, close to the male die core, of the slider seats; the four slider inserts are respectively provided with a first block body and a second block body which form an angle, a buckle forming surface is formed on one end, far away from the second block body, of the first block body, the second block body is provided with second guide chutes, the first block body is arranged in the insert slot, and the second guide chutes are matched with the first guide chutes in pairs. The four-sided core pulling structure is simpler, easier to machine, and more convenient to assemble and disassemble.

Description

The four sides pulled core structure of mould

[technical field]

The present invention relates to a kind of pulled core structure, particularly relate to a kind of four sides pulled core structure of mould.

[background technology]

In the time adopting mould to carry out production, all there is the situation of back-off in the four sides that runs into sometimes product.Refer to Fig. 1, Fig. 1 illustrates as a kind of product structure.The four sides of described product 10 all has back-off 11.

Please, again in conjunction with consulting Fig. 2, Fig. 2 illustrates the four sides pulled core structure into the mould of prior art.For this series products 10, the mode adopting is at present that the four sides of the inherent product 10 of mould is all provided with take-up housing 20, is fixed with slide block and enters 21, four slide blocks of son and enter son 21 and enclose the back-offs 11 in order to 10 four sides of product described in moulding on each described take-up housing 20.

But, adopt above-mentioned pulled core structure, because four take-up housings 20 of needs and slide block enter son 21, complex structure, processing difficulties, handling inconvenience, required cost is higher.

In view of this, be necessary to develop in fact a kind of four sides pulled core structure of mould, to address the above problem.

[summary of the invention]

Therefore, the object of this invention is to provide a kind of four sides pulled core structure of mould, solve the four sides pulled core structure complex structure of prior art, processing difficulties, loads and unloads inconvenient problem.

In order to achieve the above object, the four sides pulled core structure of mould provided by the invention, for having the formed product of back-off on four sides, this structure comprises:

Male die core, which is provided with four and enters pilot trench, described in enter pilot trench between two point-blank, described two straight lines intersect, and enter the crossing position of pilot trench described in each to be provided with male die insert;

Two take-up housings, it is located at respectively the both sides that described male die core is relative, and each described take-up housing has the first guide runner near described male die core one side;

Four slide blocks enter son, each described slide block enters son and has the first block and the second block, described the first block and described the second block are an angle, on described the first block, there is back-off forming surface away from described second block one end, on described the second block, there is the second guide runner, described the first block enters in pilot trench described in being located at, and described the second guide runner coordinates with above-mentioned one first guide runner between two.

Optionally, be also provided with guide pillar hole in described take-up housing, described mould has Angle Pin, and described Angle Pin is inserted in described guide pillar hole.

Optionally, described slide block enter son along described in to enter the distance that pilot trench exits be Y, the length of the back-off of described product is S, L1 is the first safe clearance, Y > S+L1.

Optionally, described the first safe clearance is 2mm.

Optionally, in described mould, be also provided with limited screw.

Optionally, the distance of described take-up housing after matched moulds and between described limited screw is S3, and it is S2 that described take-up housing maximum in the horizontal direction exits stroke, and L2 is the second safe clearance, S3 > S2+L2.

Optionally, described the second safe clearance is 2mm.

Compared to prior art, utilize the four sides pulled core structure of mould of the present invention, the second guide runner that enters son due to described four slide blocks coordinates with above-mentioned one first guide runner between two, and in the time of die sinking, each described take-up housing drives two described slide blocks to enter the direction motion of son in described take-up housing motion; Meanwhile, each described slide block enter son the second guide runner in above-mentioned the first guide runner, slide; Thereby make each described slide block enter sub resultant motion for entering to slide in pilot trench described.Based on above-mentioned, described four slide blocks enter son only needs two take-up housings cooperations can reach the moulding of product four sides back-off, thereby structure is simpler, and processing is more prone to, and loads and unloads convenient.

[accompanying drawing explanation]

Fig. 1 illustrates as a kind of product structure.

Fig. 2 illustrates the four sides pulled core structure into the mould of prior art.

Fig. 3 illustrates the package assembly schematic diagram into four sides pulled core structure one preferred embodiment of mould of the present invention.

Fig. 4 illustrates the decomposition texture schematic diagram into four sides pulled core structure one preferred embodiment of mould of the present invention.

Fig. 5 illustrates the assembly structure cutaway view in mould into four sides pulled core structure one preferred embodiment of mould of the present invention.

[specific embodiment]

Please jointly consult Fig. 3, Fig. 4, Fig. 3 illustrates and illustrates the decomposition texture schematic diagram into four sides pulled core structure one preferred embodiment of mould of the present invention for package assembly schematic diagram, Fig. 4 of four sides pulled core structure one preferred embodiment of this mould of the present invention.Wherein the take-up housing 200 in Fig. 3, Fig. 4 is to illustrate one as example.

In order to achieve the above object, the four sides pulled core structure of mould provided by the invention, has product 10 moulding (incorporated by reference to consulting Fig. 1) of back-off 11 for four sides, and in the present embodiment, this structure comprises:

Male die core 100, which is provided with four and enters pilot trench 101, described in enter pilot trench 101 between two point-blank, described two straight lines intersect, and enter the crossing position of pilot trench 101 described in each to be provided with male die insert 102;

Two take-up housings 200, it is located at respectively the relative both sides of described male die core 100, and each described take-up housing 200 has the first guide runner 201 near described male die core 100 1 sides;

Four slide blocks enter son 300, each described slide block enters son 300 and has the first block 301 and the second block 302, described the first block 301 is an angle with described the second block 302, on described the first block 301, there is back-off forming surface 303 away from described second block 302 one end, on described the second block 302, there is the second guide runner 304, described the first block 301 enters in pilot trench 101 described in being located at, and described the second guide runner 304 coordinates with above-mentioned one first guide runner 201 between two.

Referring again to Fig. 5, Fig. 5 illustrates the assembly structure cutaway view in mould into four sides pulled core structure one preferred embodiment of mould of the present invention.

Please, again in conjunction with consulting Fig. 3, Fig. 4, in the present embodiment, described take-up housing 200 is interior can also be provided with guide pillar hole 202, and described mould has Angle Pin 400, and described Angle Pin 400 is inserted in described guide pillar hole 202.

Wherein, described slide block enter son 300 along described in to enter the distance that pilot trench 101 exits be Y, the length of the back-off 11 of described product 10 is S, L1 is the first safe clearance, Y > S+L1.Described the first safe clearance is for example 2mm.Set after described the first safe clearance, can guarantee that described slide block enters son 300 distances that exit enough, and described product 10 can normally be taken out.

Wherein, in described mould, can also be provided with limited screw 500.The distance of described take-up housing 200 after matched moulds and between described limited screw 500 is S3, and it is S2 that described take-up housing 200 maximum in the horizontal direction exits stroke, and L2 is the second safe clearance, S3 > S2+L2.Described the second safe clearance is for example 2mm.Set after described the second safe clearance, can guarantee that described take-up housing 200 has enough strokes that exits.

In the time of die sinking, each described take-up housing 200 drives two described slide blocks to enter the direction motion that son 300 moves at described take-up housing 200; Meanwhile, each described slide block enters son the second guide runner 304 of 300 and slides in above-mentioned the first guide runner 201; Thereby make each described slide block enter son 300 resultant motion for entering to slide in pilot trench 101 described.

Compared to prior art, utilize the four sides pulled core structure of mould of the present invention, the second guide runner 304 that enters son 300 due to described four slide blocks coordinates with above-mentioned one first guide runner 201 between two, based on above-mentioned, described four slide blocks enter son 300 only needs two take-up housings 200 to coordinate the moulding that can reach product 10 four sides back-offs 11, thereby structure is simpler, processing is more prone to, and loads and unloads convenient.

Claims

1. a four sides pulled core structure for mould, for having the formed product of back-off on four sides, is characterized in that, this structure comprises:

2. the four sides pulled core structure of mould as claimed in claim 1, is characterized in that, is also provided with guide pillar hole in described take-up housing, and described mould has Angle Pin, and described Angle Pin is inserted in described guide pillar hole.

3. the four sides pulled core structure of mould as claimed in claim 1 or 2, is characterized in that, described slide block enter son along described in to enter the distance that pilot trench exits be Y, the length of the back-off of described product is S, L1 is the first safe clearance, Y > S+L1.

4. the four sides pulled core structure of mould as claimed in claim 3, is characterized in that, described the first safe clearance is 2mm.

5. the four sides pulled core structure of mould as claimed in claim 1 or 2, is characterized in that, is also provided with limited screw in described mould.

6. the four sides pulled core structure of mould as claimed in claim 5, it is characterized in that, the distance of described take-up housing after matched moulds and between described limited screw is S3, and it is S2 that described take-up housing maximum in the horizontal direction exits stroke, L2 is the second safe clearance, S3 > S2+L2.

7. the four sides pulled core structure of mould as claimed in claim 6, is characterized in that, described the second safe clearance is 2mm.